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<title>算法训练 9-7链表数据求和操作</title>
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 <p>读入10个复数，建立对应链表，然后求所有复数的和。<br />
&nbsp;样例输入<br />
&nbsp;1 2<br />
&nbsp;1 3<br />
&nbsp;4 5<br />
&nbsp;2 3<br />
&nbsp;3 1<br />
&nbsp;2 1<br />
&nbsp;4 2<br />
&nbsp;2 2<br />
&nbsp;3 3 <br />
&nbsp;1 1<br />
&nbsp;样例输出<br />
&nbsp;23+23i&nbsp;</p>